From 9cf82f641b8982df526107b99d883545ee02fe20 Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Wed, 12 Jun 2019 21:01:42 +0200
Subject: Restructuring

---
 codegen_lbm.py | 132 ---------------------------------------------------------
 1 file changed, 132 deletions(-)
 delete mode 100644 codegen_lbm.py

(limited to 'codegen_lbm.py')

diff --git a/codegen_lbm.py b/codegen_lbm.py
deleted file mode 100644
index a71fc15..0000000
--- a/codegen_lbm.py
+++ /dev/null
@@ -1,132 +0,0 @@
-import pyopencl as cl
-mf = cl.mem_flags
-
-import numpy
-import time
-
-import matplotlib
-import matplotlib.pyplot as plt
-matplotlib.use('AGG')
-
-import sympy
-import lbm_d2q9 as D2Q9
-
-from mako.template import Template
-
-class D2Q9_BGK_Lattice:
-    def idx(self, x, y):
-        return y * self.nX + x;
-
-    def __init__(self, nX, nY, tau, geometry):
-        self.nX = nX
-        self.nY = nY
-        self.nCells = nX * nY
-        self.tau = tau
-        self.tick = True
-
-        self.platform = cl.get_platforms()[0]
-        self.context  = cl.Context(properties=[(cl.context_properties.PLATFORM, self.platform)])
-        self.queue = cl.CommandQueue(self.context)
-
-        self.np_material = numpy.ndarray(shape=(self.nCells, 1), dtype=numpy.int32)
-        self.setup_geometry(geometry)
-
-        self.cl_pop_a = cl.Buffer(self.context, mf.READ_WRITE, size=9*self.nCells*numpy.float32(0).nbytes)
-        self.cl_pop_b = cl.Buffer(self.context, mf.READ_WRITE, size=9*self.nCells*numpy.float32(0).nbytes)
-
-        self.cl_moments  = cl.Buffer(self.context, mf.WRITE_ONLY, size=3*self.nCells*numpy.float32(0).nbytes)
-        self.cl_material = cl.Buffer(self.context, mf.READ_ONLY | mf.USE_HOST_PTR, hostbuf=self.np_material)
-
-        self.build_kernel()
-
-        self.program.equilibrilize(self.queue, (self.nX,self.nY), (32,1), self.cl_pop_a, self.cl_pop_b).wait()
-
-    def setup_geometry(self, geometry):
-        for y in range(1,self.nY-1):
-            for x in range(1,self.nX-1):
-                self.np_material[self.idx(x,y)] = geometry(self.nX,self.nY,x,y)
-
-    def build_kernel(self):
-        program_src = Template(filename = './template/kernel.mako').render(
-            nX     = self.nX,
-            nY     = self.nY,
-            nCells = self.nCells,
-            tau    = self.tau,
-            moments_helper     = D2Q9.moments_opt[0],
-            moments_assignment = D2Q9.moments_opt[1],
-            collide_helper     = D2Q9.collide_opt[0],
-            collide_assignment = D2Q9.collide_opt[1],
-            c     = D2Q9.c,
-            w     = D2Q9.w,
-            ccode = sympy.ccode
-        )
-        self.program = cl.Program(self.context, program_src).build()
-
-    def evolve(self):
-        if self.tick:
-            self.tick = False
-            self.program.collide_and_stream(self.queue, (self.nX,self.nY), (32,1), self.cl_pop_a, self.cl_pop_b, self.cl_material)
-        else:
-            self.tick = True
-            self.program.collide_and_stream(self.queue, (self.nX,self.nY), (32,1), self.cl_pop_b, self.cl_pop_a, self.cl_material)
-
-    def sync(self):
-        self.queue.finish()
-
-    def get_moments(self):
-        moments = numpy.ndarray(shape=(3, self.nCells), dtype=numpy.float32)
-        if self.tick:
-            self.program.collect_moments(self.queue, (self.nX,self.nY), (32,1), self.cl_pop_b, self.cl_moments)
-        else:
-            self.program.collect_moments(self.queue, (self.nX,self.nY), (32,1), self.cl_pop_a, self.cl_moments)
-        cl.enqueue_copy(LBM.queue, moments, LBM.cl_moments).wait();
-        return moments
-
-
-def MLUPS(cells, steps, time):
-    return cells * steps / time * 1e-6
-
-def generate_moment_plots(lattice, moments):
-    for i, m in enumerate(moments):
-        print("Generating plot %d of %d." % (i+1, len(moments)))
-
-        density = numpy.ndarray(shape=(lattice.nY-2, lattice.nX-2))
-        for y in range(1,lattice.nY-1):
-            for x in range(1,lattice.nX-1):
-                density[y-1,x-1] = m[0,lattice.idx(x,y)]
-
-        plt.figure(figsize=(10, 10))
-        plt.imshow(density, origin='lower', vmin=0.2, vmax=2.0, cmap=plt.get_cmap('seismic'))
-        plt.savefig("result/density_" + str(i) + ".png", bbox_inches='tight', pad_inches=0)
-
-def box(nX, nY, x, y):
-    if x == 1 or y == 1 or x == nX-2 or y == nY-2:
-        return 2
-    else:
-        return 1
-
-nUpdates = 1000
-nStat    = 100
-
-moments = []
-
-print("Initializing simulation...\n")
-
-LBM = D2Q9_BGK_Lattice(nX = 1024, nY = 1024, tau = 0.8, geometry = box)
-
-print("Starting simulation using %d cells...\n" % LBM.nCells)
-
-lastStat = time.time()
-
-for i in range(1,nUpdates+1):
-    LBM.evolve()
-
-    if i % nStat == 0:
-        LBM.sync()
-        print("i = %4d; %3.0f MLUPS" % (i, MLUPS(LBM.nCells, nStat, time.time() - lastStat)))
-        moments.append(LBM.get_moments())
-        lastStat = time.time()
-
-print("\nConcluded simulation.\n")
-
-generate_moment_plots(LBM, moments)
-- 
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